Elle Fanning in a prehistoric setting, depicted as a lone woman in the Stone Age, donning a tattered loin cloth. Her hair is wild and unkempt, adorned with intricate tribal tattoos on her skin. She clutches a primitive spear, standing on edge within a dimly lit cave. Her expression is a mix of fear and determination. The scene is rendered in ultra-realistic detail, capturing the essence of 8k resolution with a touch of ethereal mystique, as if crafted by the legendary hands of Boris Vallejo and Frank Frazetta. The atmosphere is intense, with shadows playing against the cave walls.